DNA
Vocabulary
DNA-Molecule that stores genetic info in all organisms
Trait-Characteristic that is inherited
Allele-Any of the alternative forms of a gene that occurs at a specific place on a chromosome
Dominant-Allele that is expressed when two different alleles are present in an organism’s genotype
Recessive-Allele that is not expressed unless two copies are present in an organism’s genotype
Genotype- Collection of all of an organism’s genetic info that codes for traits
Phenotype-Collection of all of an organism’s physical characteristics
Trait-Characteristic that is inherited
Allele-Any of the alternative forms of a gene that occurs at a specific place on a chromosome
Dominant-Allele that is expressed when two different alleles are present in an organism’s genotype
Recessive-Allele that is not expressed unless two copies are present in an organism’s genotype
Genotype- Collection of all of an organism’s genetic info that codes for traits
Phenotype-Collection of all of an organism’s physical characteristics
Organization of DNADNA is organized into chromosomes.
DNA tells each cell what to do which in turn determines traits of an organism. |
Components of DNADNA is made up of the nitrogen bases: adenine, thymine, guanine, and cytosine, sugar connections, and phosphate groups.
The order of these nitrogen bases determines the information sent to the cell. |
Genetic InheritanceInheritance-Genetic information passed down from the parents to the offspring
DNA comes from the parents chromosomes, and since chromosomes contain DNA which determines traits, the chromosomes from parents determine your traits. |